With Flow Controller For Material Being Treated Patents (Class 210/418)
Attached to or within portable prefilt receiver (Class 210/419)
Selective directive flow relative to filter (Class 210/420)
Combining or dividing flow passages with filter in combined passage (Class 210/428)
Filter coaxial with valve seat or valve stem (Class 210/429)
Filter in valve body recess (Class 210/432)
  • Apparatus for continuous dewatering of aqueous suspensions
    Patent number: 3941701
    Abstract: The upper flight of an endless filter belt is supported by a backing sheet as it passes through a feeding and initial partial dewatering zone. The upper flight of the filter belt then passes through a main dewatering zone while being subjected to pressure in a direction to force liquid therethrough. Drainage slots in the upper surface of the backing sheet extend at an angle to the direction of travel of the upper flight and leave narrow strips between adjacent slots which engage the under surface of the upper flight.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: March 2, 1976
    Assignee: Passavant-Werke Michelbacher Huette
    Inventors: Ulrich Stahl, Oswald Busse, Hugo Klesper, Werner Junker
  • Water filter assembly
    Patent number: 3935106
    Abstract: A low cost water filter apparatus including a valve rotor rotatable within a valve housing which rotor may be rotated within the valve housing when necessary for the purpose of engaging a bypass safety feature, or for the purpose of shutting off the flow of water through the filter unit prior to changing the filter element.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: January 27, 1976
    Inventor: Herbert D. Lipner